S1 E44: A Brief History of the Universe: Crash Course Astronomy #44

Aired: 6/18/2016 | 0:12:21 | Episode

Thanks to the wonders of physics, astronomers can map a timeline of the universe’s history. Today, Phil’s going to give you an overview of those first few minutes (yes, MINUTES) of the universe’s life. It started with a Big Bang, when the Universe was incredibly dense and hot.